534522521 has 4 divisors (see below), whose sum is σ = 575639652. Its totient is φ = 493405392.

The previous prime is 534522511. The next prime is 534522523. The reversal of 534522521 is 125225435.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53816896 + 480705625 = 7336^2 + 21925^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-534522521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (534522523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20558546 + ... + 20558571.

It is an arithmetic number, because the mean of its divisors is an integer number (143909913).

Almost surely, 2^534522521 is an apocalyptic number.

It is an amenable number.

534522521 is a deficient number, since it is larger than the sum of its proper divisors (41117131).

534522521 is a wasteful number, since it uses less digits than its factorization.

534522521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41117130.

The product of its digits is 12000, while the sum is 29.

The square root of 534522521 is about 23119.7430997838. The cubic root of 534522521 is about 811.5625586153.

Adding to 534522521 its reverse (125225435), we get a palindrome (659747956).

The spelling of 534522521 in words is "five hundred thirty-four million, five hundred twenty-two thousand, five hundred twenty-one".